Stove.



STOVE.

APPLICATION FILED SEPT. 24, 1906, RBNEWBD FEB. 2o, 1909. 1,049,938.

P. L. STEWART.

Patented Jan. 7, 1913.

` 4 wihnoaeo SIMM? ltlhlllTFiD STATES PATENT FFTQF.

FRANK L. STEWART, OF BOYNE FALLS, MICHIGAN.

STGVE.

Specification of Letters Patent.

Patented Jari. @,1913.

Application filed September 2e, 1908, Serial No. 336,038. Renewed February 20, 1909. Serial No. 479,272.

To all whom it muy concern:

Be it known that l, FRANK L. STEWART, a citizen of the United States, residing at Boyne Falls, in the county of Charlevoix and State of Michigan, have invented certain new and useful Tmprovements in Stoves, of which the following is a speci fication.

My invention relates to improvements in heating stoves, and its objects are, first, to provide a stove with which wet peat or muck, or wet saw dust may be readily burned; and, second, to provide a stove with which the radiation of heatmay be varied from the least to the greatest possible degree of heat available from a given amount of combustion. I attain these objects by the construction shown in the accompanying drawing in which- Figure l is a sectional side elevation of the stove on the line :c fc of Fig. 2; Fig. 2 is a front elevation of the stove; Fig. 3 is a side elevation of the stove with the entire side inclosed and showing a. modified form of top on the stove; Fig. l is a top plan, and Fig. 5 is an elevation of the inner partition of the combustion chamber showing the valve that regulates the outflow of gas, steam, &c., from the combustion chamber.

Similar letters refer to similar parts throughout the several views.

A represents the combustion chamber of the stove. In this chamber l place several inclined shelves, as a, a and a. l prefer that these shelves be made so as to be readily detached, and for this purpose l have shown the shelves as loosely hooked over cleats l, and supported by braces l. The saw dust, peat, or other fuel, is passed through the door K, or its equivalent, into the chamber A above the shelf a where it is retained indicated at B, until it is dried sufficiently to drop down to the shelf a and thence upon the shelf a and to the fire pit B where it is burned. The fire pit is accessible from the outside through the door K so that a preparatory, or preliminary wood fire may be built to prepare the first supply of wet fuel for combustion, and to ignite it when it first enters the fire pit; and the door is also useful for removing ashes, Sec., it being understood that any form of available grate may be used for supporting the fuel in the fire pit.

It will be noticed that the combustion chamber A is, practically, in the back part of the stove. This brings the fire back of the center of the stove so that with the damper F open, as indicated by the dotted lines, the draft will be in the direction of the arrows b, through the flue C so that no heat will be radiated from the front of the stove. This enables me to burn a reasonably hot lire at B without heating the surrounding room, while with the damper closed, as indicated in Fig. l, the draft will be diverted through the serpentine flue D, as indicated by the arrows d, to the pipe o-pening L, as indicated by the arrow and cause a much greater radiation of heat and a consequent higher temperature in the surrounding room.

e represents a direct draft damper for regulating the combustion of fuel at B, and e represents a cold air damper for deadening the combustion.

When burning very wet fuel, as this stove is designed to do, a large amount of steam and gas will accumulate in the upper portion of the combustion chamber above the fuel B, which must be disposed of to avoid to-o great pressure in the chamber, and T provide for this by inserting a damper, as j, in the back wall of the flue C, near the top, so that the steam or gas may pass out of the combustion chamber into the ue C and out of the stove. lllhen the damper F is closed the steam, Src., passes down into the flue C, as indicated by the arrow c, to the bottoni of said flue and then following the direction of the arrows CZ Z Z7 is carried oft. When this course is taken by the steam it, being previously heated to a high degree, comes in direct contact with the burning fuel in the fire pit and adds greatly to the heat producing qualities of the fire as it passes through the flue l), greatly increasing the radiation of heat from this flue.

At G T have provided for an oven which has a door g that may be opened or closed at pleasure, and at l, T have provided for a heating oven for keeping victuals warm, for warming the feet or for any other desired purpose, and provide it with a door t' that may be opened and closed at pleasure, while at H is a simple radiating chamber. This is provided with an open front pref erably with a sliding damper therein, as indicate-d at 7L, so that heat will escape freely, and T prefer that the door z' be constructed the same, and that both be so arranged that the openings may be readily closed the same as any sliding damper. 'these openings may be made of' any desired design, ornamental or otherwise.

l preter that the tlue D be protected, on the bach aides, with aeliieetoe, indicated at 7J, or other suitable non-conductor of heat, so that a large portion ot heat paseing through said flue will be radiated toward the trent et the store and out. rlhe pipes J J open from the iront ot the Stove above the compartment G, and entend through the tlue D in a course downwardly to points directly over the burning fuel in the lire pit, ae atj,eo that the draft torined hrough the tlues C and D will draw the cold air through these lines from the outer or upper ende, as at d, in litige. l and 2, downwardly through the pipee J to direct contact with the burning tuel and thence out through the tlues C and l). By this means the air passing through the pipes d is Superlieated be tore it reaches the burning; fuel, insuringv the moet complete coi'nbuetion, not only ot the fuel, but ot a large amount ot the smoke that would otherwi'e be carried oit through the iluee, to the outer atmosphere, as well as accumulated at the tire.

lll is the handle with which the damper l" is manipulated; f is the handle with which the damper is manipulated, and m m, Snc., are griddles covering holes in the stove top M, which may be utilized tor culinary, or other purposes.

1With this atove it is possi le to use tuel that is very damp, initially, as the Shelves a, a and o are placed. in the combustion chamber alternately pon opposite SidesI and the end ot each overlaps the ende` of the next succeeding` ones so that the luel may be So exposed to heat that the portion iininediately upon the upper shelf, a, will become Suticientlv dry to Slide down upon the ebelt' o', where it is exposed to a greater degree ot heat and rendered nearly dry before it slides to the shelt a, whence it Slides, in an almost perfectly dry etate, to the tire pit where combustion taires place practically ae indicated at B. The triangular spacca between the Serpentine tlue l) and the direct flue J result trom the peculiar formation ot the serpentine tlue, and may be lett open, as indicated in 1, to create greater heat radiation trein the stove into the room, or they may be closed, as indicated in Fig'. 3, in which case they act as dead air chambere, confining the heat to increase the temperature in the ovens.

Having' thus fully described my invention, what l claim ae new and deeire to Secure by Lettere Patent ot the United States ietw l. A Stove divided into a 'trontand a bach compartment, having a Serpentine flue pas@- roeeeee ing; upward through the trent compartment, the walls ot which :torno radiating Surfaces in position to throw the heat forward into the outer atmosphere, the baelr compart ment divided into a fuel receptacle and a lie pit, a Series oit alternately inclined shelves torming a Serpentine passage between the fuel receptacle and the tire pit, the walls between the front compartment and bach coinpartm-ent being double and arrange l to form a draft liuc directly upward :trom the lire pit, a stove pipe on the Stove, the top ot the Stove and et the compartments forming a horizontal liuc letween them trom the serpentine tlue and the direct flue to the stove pipe, and a damper in the draft flue to regte late the draft 0,-, the stove.

A stove having` a trent compartment and a bach compartiment, walla forming a direct vertical tine between said compartments from the tire pit tothe top et the compartments, the trout compartment having a serpentine tlue paeeinp; upwardly through it and forming,` an air dratt trom the tire pit through the trent compartment and into the horizontal. tlue at t' e top et the Stove, air tubes passing' through the Serpentine tine and into the bach compartment, alternately ar 1anged inclined Sbelvee arranged in the bach compartment to form a fuel receptacle in the upper end, a lire pit in the lower end.. and a Serpentine passageway t'roin the fuel receptacle to the tire pit, the wall between the fuel receptacle and the vertical tiue having an opening; through it, a damper to regulate said opening, and a damper in the direct tlue to regulate combuetion.

3. fr stove having combustion chamber, dividing Walle therein termine; a draft AHue leading;1 trom the combustion chamber, alterhating inclined Shelves arranged in the coinbustion chamber forming` a serpentine fuel passage therethrough and a tiro pit below them, the dividingwall between the com- Muetion chamber and the draft tlue having); an opening through it ttor the passage ot Steam trom the upper part et the combustion chamber into the draft ilue, dampersI to regulate the draft flue and the said opening, Said stove haifing` a stove pipe leading to the outer air, and having a Space between the top et the stove and the top ot the coinbustion chamber arranged to form a Ylinie be tween them trom the direct draft flue to the Stove pipe.

Signed at Grand Rapide, Michigan, ,Elepteinber 15, 1906.

In presence ot- Clins. lll. Kennern, lrrrinn il. Cinner.

(Iopes of this patent may be obtained for five cent-s each, by addressing the Gominissoner el Patents.

Washington, 3i. C. 

